• Re: Televideo PT-100 - Video just went out

    From Spectre@21:3/101 to Gandalf on Thursday, January 09, 2020 12:40:00
    As someone who was scared shitless of opening up a CRT and getting shocked, I always assumed that the flyback transformer would make noise before going bad, where as caps would just pop and die?

    Great point! I will start checking the caps.

    Caps are a great place to start, I don't know about this particular terminal, but worth checking the solder joints around the EHT/flyback.. some tend to break them eventually. You could also lift the cover and see if the neck of the tube is still glowing in the dark, would show the tube is still likely
    ok, and its missing drive.

    Phase one would have to be check the power supply voltages just in case...

    Spec


    *** THE READER V4.50 [freeware]

    --- SuperBBS v1.17-3 (Eval)
    * Origin: Scrawled in haste at The Lower Planes (21:3/101)
  • From Spectre@21:3/101 to Gandalf on Thursday, January 09, 2020 12:40:00
    As someone who was scared shitless of opening up a CRT and getting shocked, I always assumed that the flyback transformer would make noise before going bad, where as caps would just pop and die?

    Great point! I will start checking the caps.

    Caps are a great place to start, I don't know about this particular terminal, but worth checking the solder joints around the EHT/flyback.. some tend to break them eventually. You could also lift the cover and see if the neck of the tube is still glowing in the dark, would show the tube is still likely
    ok, and its missing drive.

    Phase one would have to be check the power supply voltages just in case...

    Spec


    *** THE READER V4.50 [freeware]

    --- SuperBBS v1.17-3 (Eval)
    * Origin: Scrawled in haste at The Lower Planes (21:3/101)